Displaying similar documents to “Rational smoothness of varieties of representations for quivers of Dynkin type”

Quiver varieties and Weyl group actions

George Lusztig (2000)

Annales de l'institut Fourier

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The cohomology of Nakajima’s varieties is known to carry a natural Weyl group action. Here this fact is established using the method of intersection cohomology, in analogy with the definition of Springer’s representations.

Local cohomology multiplicities in terms of étale cohomology

Manuel Blickle, Raphaël Bondu (2005)

Annales de l'institut Fourier

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Using a recently introduced correspondence of Emerton-Kisin we give a description of Lyubeznik’s local cohomology invariants in terms of local étale cohomology with 𝐙 / p 𝐙 coefficients.